package com.mmall.controller.backend;

import com.mmall.common.Constant;
import com.mmall.common.ResponseCode;
import com.mmall.common.ServerResponse;
import com.mmall.pojo.User;
import com.mmall.service.ICategoryService;
import com.mmall.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpSession;

/**
 * @Classname CategoryManageController
 * @Description TODO
 * @Date 2020/8/12 20:37
 * @Created by ccc-j
 * @email ccc-ju@outlook.com
 */
@Controller
@RequestMapping("/manage/category")
public class CategoryManageController {

    @Autowired
    private IUserService iUserService;

    @Autowired
    private ICategoryService iCategoryService;

    @RequestMapping(value = "add_category.do", method = RequestMethod.GET)
    @ResponseBody
    public ServerResponse addCategory(HttpSession session, String categoryName, @RequestParam(value = "parentId", defaultValue = "0") int parentId){
        User user = (User) session.getAttribute(Constant.CURRENT_USER);
        if(user == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(), "用户未登录,请先登录!");
        }
        //校验是否是管理员
        if(iUserService.checkAdminRole(user).isSuccess()){
            //是管理员
            //增加处理分类的逻辑
            return iCategoryService.addCategory(categoryName, parentId);
        }else {
            return ServerResponse.createByErrorMessage("无权限操作,需要管理员权限!");
        }
    }

    @RequestMapping(value = "set_category_name.do", method = RequestMethod.GET)
    @ResponseBody
    public ServerResponse setCategoryName(HttpSession session, Integer categoryId, String categoryName){
        User user = (User) session.getAttribute(Constant.CURRENT_USER);
        if(user == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(), "用户未登录,请先登录!");
        }
        //校验是否是管理员
        if(iUserService.checkAdminRole(user).isSuccess()){
            //更新categoryName
            return iCategoryService.updateCategoryName(categoryId, categoryName);
        }else {
            return ServerResponse.createByErrorMessage("无权限操作,需要管理员权限!");
        }
    }

    @RequestMapping(value = "get_category.do", method = RequestMethod.GET)
    @ResponseBody
    public ServerResponse getChildrenParallelCategory(HttpSession session, @RequestParam(value = "categoryId", defaultValue = "0") Integer categoryId){
        User user = (User) session.getAttribute(Constant.CURRENT_USER);
        if(user == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(), "用户未登录,请先登录!");
        }
        //校验是否是管理员
        if(iUserService.checkAdminRole(user).isSuccess()){
            //查询子节点的category信息，并不递归，保持平级
            return iCategoryService.getChildrenParallelCategory(categoryId);
        }else {
            return ServerResponse.createByErrorMessage("无权限操作,需要管理员权限!");
        }
    }

    @RequestMapping(value = "get_deep_category.do", method = RequestMethod.GET)
    @ResponseBody
    public ServerResponse getCategoryAndDeepChildrenCategory(HttpSession session, @RequestParam(value = "categoryId", defaultValue = "0") Integer categoryId){
        User user = (User) session.getAttribute(Constant.CURRENT_USER);
        if(user == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(), "用户未登录,请先登录!");
        }
        //校验是否是管理员
        if(iUserService.checkAdminRole(user).isSuccess()){
            //查询当前节点的ID和递归子节点的ID
            return iCategoryService.selectCategoryAndChildrenById(categoryId);
        }else {
            return ServerResponse.createByErrorMessage("无权限操作,需要管理员权限!");
        }
    }

}
